How to capture a query parameter from a redirect URL after a POST request?

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1

I’m working with an OAuth-like flow where I:

  1. Send a POST request to /authorise/authenticate with credentials.
  2. That request responds with a 302 redirect to a GET URL like:
    https://example.com/?code=abc123&state=xyz

I’m running this as part of a Postman collection (potentially via Newman later), and I need to extract the code parameter from that redirected GET URL.

But I’ve found that Postman:

  • Follows redirects automatically
  • Does not expose the final redirected URL in the response object
  • Doesn’t allow me to access it in scripts (pre-request/test)

Is there any way (via scripting, settings, or workarounds) to catch that code from the redirect URL inside Postman?
Just in case - the ultimate goal is to make this collection run fully headless (no UI interaction) so we can integrate it into our CI/CD pipeline using Newman.

2

How about if you go into your Postman settings and disable “Automatically follow redirects” in the general tab under headers.

Also this topic might be of use.

Pre-request script to automate authorization code grant type - Ask the Experts and Postman Tips - Postman Community

3

Thank you so much!
It helped!